Gtalk doesn't provide groups in chat window. If I am online, I am online for all. If I am invisible, I am invisible for all. So, I see a very large list when I get online. For me, say for example, few ...
I know that you must change some SV records for it to work but I have no idea which is which because Google just gives a string and GoDaddy has no idea how to input that string into their settings, ...